i need all the help i can get in iris recognition theory and hardware plzzzzzzzz
Iris recognition?
The basic idea is pretty simple. Take a close-up picture of the eye, with the pupil contracted most of the way. Draw a circle around the pupil, half-way between the inner and out edge of the iris. As you move around that circle, measure the pattern of light and dark at several hundred evenly spaced points. For convenience, identify the darkest point as -1 and the lightest as +1, and scale all brightness levels in between. Store the measurements for each person of interest. It's best to use an infra-red camera, because that detects the patterns better in people with dark irises.
To use recognize a person by iris recognition, repeat the measurement on the person who requests authorizaton. Perform a circular correlation between the new set of measurements and the stored value. If the maximum value of the correlation is above your chosen threshold, then assume that you have correctly identified the person.
Hardware: an IR camera able to take closeups of the eye, and a PC for doing arithmetic.
Hard parts: deciding how many measurements you need for each iris, deciding what threshold to use for deciding whether the person in front if you is who he claims to be. Lots of stats involved here.
get well flower
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